Dinara Ismanova - Urdhva Padmasana gives all the benefits of the classical inverted asanas like Sirsasana. It is good for Brahmacharya or celibacy. There is increased flow of blood to the brain
B K S Iyengar - Iyengar Yoga - Asanas - Inversions
All about yoga inversions - Ekhart Yoga
Face Fear and Learn Key Inversions | Inverted Yoga Poses for Beginners